In the following passage some of the words have been left out, Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

In recent years, outbreaks of H1N1, dengue, chikungunya, etc.., have kept state health departments (1) __________ the country busy. During the 20 18 Nipah outbreak, Kerala (2) __________ challenges like mobilising diagnostic facilities, planning treatment protocols, setting up isolation wards. procuring protective gear (3)) __________ vaccines, spreading awareness and instituting community surveillance. (4) __________ states must also prepare for (5) __________ contingencies